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Cortina E-U4 Family Transport E-Bike 28" 50cm 7S - Mat Green
- EAN 8719461061537
- Brand: Cortina
- Product Model: 872333
The Cortina E-U4 family transport is the perfect bike for parents who travel with children and want to transport their belongings safely at the same time.
Thanks to the extended frame, this bike offers extra space between the saddle and the handlebars, so that both mom and dad (or grandpa, grandma or the babysitter) can cycle comfortably and safely.
The handlebar lock and double stand provide extra stability, even with children and luggage on board.
With a load capacity of 170 kg, the E-U4 offers enough capacity to carry groceries, diaper bags and other necessities, without compromising on safety or comfort.
Cortina understands that comfort is essential for parents who often make long journeys, and has designed the bike with these needs in mind. The E-U4 is available in various unisex colours and makes cycling with children not only easier, but also more fun.
This bike comes standard with a 400wh Bosch battery and a 2a Bosch battery charger. An optional upgrade is possible to a 500wh battery so you can cycle even further.
The battery charger can also be upgraded to a 4a battery charger so you can get on the bike even faster!
Specifications:
Brand: Cortina
Model: E-U4
Type: Family Transport
Frame height: 50cm
Number of gears: 7V
Target group: Women
Gear system: Shimano
Brake system: Double handbrake
Gear system type: Hub
Drive: Chain
Battery choice: Yes
Luggage rack: Front
Bell: Yes
Frame material: Aluminum
Handles: Cortina Dakar
Weight: 29kg
Pedal function: Yes
Front brake system: Shimano
Model year: 2025
Support settings: 8
Motor position: Middle
Brake type: Hydraulic disc brakes
Sensor: Power
Stand: Double stand
Stem: Adjustable
Handlebar lock: Yes
Tyre type: Cortina Canberra with anti-puncture layer
Front brake system type: SH
Lock type: Abus 4650 R ART**
Rear lighting: Union 4370 powered by e-bike system
Front lighting: Cortina Amsterdam 18 lux powered by e-bike system
Lighting power: Battery
Front carrier: Yes
Front fork: Fixed
Saddle: Selle Royal Gipsy
Standard battery weight: 3.30Kg
Display type: Bosch Purion 200
Gear: Shimano Nexus 7-Speed
Battery location: Rear carrier
Tire size: 28 x 1.75
Frame model: Low
Rear click system carrier: True
Colour: Matt green
Children are generally taught to ride a bike at an early age.
The right size bicycle allows for a comfortable and safe riding position for children and teens, and stimulates maximum performance of the muscles.
Aside from being less tiring and preventing overexertion of the knees, the right size bike encourages regular bike use and cycling in general.
This size is usually based on the wheel diameter.
| Children's Bicycle Size Chart | ![]() |
||
| Age (Years) |
Clothing Size |
Length | Recommended Children's Bike Size |
| 2 - 4 | 98 - 104 | ± 95 cm | 12 inch |
| 3 - 5 | 100 - 106 | ± 100 cm | 14 inch |
| 4 - 6 | 104 - 110 | ± 105 cm | 16 inch |
| 5 - 7 | 110 - 116 | ± 110 cm | 18 inch |
| 6 - 8 | 116 - 122 | ± 115 cm | 20 inch |
| 7 - 9 | 122 - 128 | ± 122 cm | 22 inch |
| 8 - 12 | 128 - 140 | ± 130 cm | 24 inch |
| 10 - 14 | 140 - 152 | ± 145 cm | 26 inch |
This sizing chart for children's bicycles is based on age and length.
Not everyone is the same length at a certain age, so it’s advisable to determine the bicycle size based on length.
The most important factor in determining the right bike size, is the inseam length.
| Body Length | Inseam Length | Recommended Bike Size |
![]() |
| 120 - 140 cm | <52 cm | 16 inch | |
| 52 - 74 cm | 20 inch | ||
| > 74 cm | 24 inch | ||
| 140 - 160 cm | < 62 cm | 20 inch | |
| 62 - 80 cm | 24 inch | ||
| > 80 cm | 26 inch | ||
| > 160 cm | < 74 cm | 24 inch | |
| > 74 cm | 26 inch |
Most children that are 120 to 140 cm tall can ride a 20 inch bike, while children between 140 and 160 cm tall can ride a 24 inch bike.
A 26 inch bike is generally suitable for teenagers who are over 160 cm tall.
The right frame height is also very important: it is the first step to finding the correct riding position.
A bicycle frame that is too small or too large can lead to limited height adjustment options, which in turn may lead to an inconvenient height difference between the saddle and handlebars.
Use the inseam length to determine which frame size is right for you.
You can do this by measuring the inside of your leg, from the top of the thigh down to the floor.
| Adult Bicycle Size Chart | ![]() |
|
| Inseam Length |
Recommended Frame Size | |
| ≈ 66 cm | 43 cm | |
| ≈ 74 cm | 48 cm | |
| ≈ 77 cm | 50 cm | |
| ≈ 78 cm | 51 cm | |
| ≈ 80 cm | 52 cm | |
| ≈ 83 cm | 54 cm | |
| ≈ 85 cm | 55 cm | |
| ≈ 86 cm | 56 cm | |
| ≈ 89 cm | 58 cm | |
| ≈ 91 cm | 61 cm | |
| ≈ 93 cm | 65 cm |
Choose the frame size closest to your results.
When in doubt, it’s best to pick the smaller frame size.
If you have any questions about determining the right bicycle size, you can always give us a call or send us an e-mail.
Cortina Fietsen
Ravensburgstraat 8
8028PZ Zwolle
The Netherlands
https://www.cortinabikes.com/
- International delivery
- Over 120,000 products
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- Over 3 million satisfied customers
- A 30-day cooling-off period and 2-year warranty
Our team of enthusiastic colleagues is ready to help you.
+31 (0)70 - 300 00 44helpdesk@hollandbikeshop.com
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